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Latest News

September 13, 2017

Learn How to Prevent Comebacks with Non-Valve-Body Vacuum Testing

Did you know that there are other areas of the transmission – aside from the valve body – that can be tested for leaks by vacuum testing? The ability to unmask these leaks is a must-have weapon in your arsenal for fighting against comebacks. From checkballs to shafts and every hydraulic circuit in between, identifying and repairing internal leaks while the unit is apart on the bench is no longer a guessing game.

Click here to learn more!

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September 06, 2017

New Torque Converter Journal: Get Answers to Your Biggest Questions About Woven Carbon Friction Rings

Check out the latest edition of the Sonnax Torque Converter Journal to:

  • Get answers to your biggest questions about woven carbon friction rings
  • Explore the new parts guide
  • Find out who’s retiring from Sonnax and view his top 10 tech articles
  • Catch up on the latest exploded views 

View Now


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September 01, 2017

Sonnax Closed on Labor Day

Sonnax will be closed Monday, Sept. 4 in observance of Labor Day. Normal business hours will resume Tuesday, Sept. 5. Wishing you a safe, happy holiday weekend filled with family, friends and fun!

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Upcoming Events

SEMA Show 2017

Las Vegas, NV

October 31, 2017, 9:00AM - 4:00PM

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PRI Show 2017

Indianapolis, IN

December 07, 2017, 9:00AM - 4:00PM

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Sonnax Industries is an Employee-Owned Company

Sonnax’s mission is to be the leading supplier of innovative drivetrain components to the automotive aftermarket by developing quality solutions that serve customer needs.